Adjustable sectional furniture.



I A. SPHUNG: ADJUSTABLE SECTIONAL FURNITURE.

APPLICATION ,FILED APR.1,19I5

Patented Nw. Q'VZ.

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A. SPRUNG.

ADJUSTABLE SECTIONAL FURNITURE.

APPLICATION FILED APR-1.1915.

Patente@ Nov. 20, 191?.

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ADJUSTABLE SECTIONAL FURNITURE.

Specification of Letters Patent.

Patented Nov.. 20, 1917.

Application tiled April 1, 1915. Serial No. 18,439.

To all 'whom t may concern.'

Be it known that I, ABBE-SPRUNG, Aa citizen of the United States,and a resident of New York, in the county of New York and State of New York, have inventedcertain new vand useful Improvements in Adjustable Sectional Furniture, of which the following is a specification.

This invention relates to improvements in furniture of the cabinet, table or desk type, in which one portion is movable with relation to another.

The objects are first, to provide mechanism for manually operating such movable portion with very little effort, a countervailing device, having an adjustable tension being combined in the mechanism.

Second, to rigidly lock the movable portion at any predetermined position desired, with respect to the main portion, the operating and locking means being controlled by a single handleconvenient to the operator,

Third, to provide an improved form of guides for the movable portion capable of holding it in lateral and longitudinal control irrespective of limited variations in the parts caused by expansion or contraction, shrinkage and the like, which would ordinarily cause difficulty by binding or slacking of adjacent portions.

These and other objects, such as economical construction, neatness in appearance and simplicity, are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawings, forming part of this specification, and in which Figure 1 is a general perspective view of a fiat top desk made in accordance with the invention, the movable portions being shown in an elevated position by broken lines.

Fig. 2 is a partial plan view of the same, to see the construction. Y

Fig. 3 is a sectional View taken on line corresponding to 3-3 of Fig. 2.

Fig. 4c is a plan view of the handle.

Fig. 5 is a side view of the same.

Fig. 6 is a perspective view of the end guides partially extended, and,

Fig. 7 is a similar view of the same but showing the guides in a closed position.

The mechanism involved in this invention may be a-ppropriately used in connection with various forms of furniture, such as tables, wardrobes, dressers, sewing machine stands, work benches, tool cabinets, business files and many others. j

In this case a desk has been used as an illustration, the pedestals 10 of which may be filled with drawers 11 as is customary and the top, in place of being one unbroken surface, is made in sections, one, the front 12, being rigid with the pedestals and the other 13, at the rear, normallycovering over an opening in the back of the desk, may have an extension provided with pigeon-holes, drawers, etc., as preferred. This section is arranged slidably within the opening and can rise therein to some distance above the level top.

The lower element l-l, of this movable section, has secured longitudinally to it an angle 15 for the purpose of giving it rigidity and to the angle are attached two small brackets 17, each having links 18 pivotally connected at their lower ends with one arm of the levers 19, which are fulcrumed on a shaft 20, and rigidly secured thereon. v

This shaft is rotatably mounted in brackets 22 fastened to a bar 23,01 other equivalent support forming part of the furniture structure.

To another arm 2st, of one of the levers 19, is attached a link 25 engaging with one arm 27 of the bell crank lever 2S, which is pivotally mounted on a bracket 29 attached, inthe present case, to one of the pedestals l0 in such manner as to extend laterally into the knee space.

The outer end of the bell-crank lever 23 is fitted to be received in theV operating handle 30, which is limitedly slidable thereon and held in engagement by means of the pin 31 which passes through the inner end of the handle and the slot 32 formed in the lever, the coiled push spring 33 keeping the handle in a normally extended position.

In order to adjust the height of the sliding member 13, through the described mechanism the pin 31 is suited to be received in any of the openings 34: formed in the arcuate keeper 35 secured, like the bracket 29, t0 one of the pedestals 10; thus it will be seen that by pressing the handle 30 inwardly against the thrust of the spring 33, the pin 31 is disengaged from the keeper 35 and the handle operated by raising or lowering it thereby efecting changes in the position of the section 13.

To enable an operator to accomplish this with the least eiort use is made of springs 3S, coiled about the shaft 20, one end of the springs being secured to the brackets 22, the otherv fastened to the collar ratchet 39 loosely mounted on the shaft 20 and provided with teeth engaging with a collar 40 having lateral teeth and pinned or otherwise held rigid with the shaft; obviously :as to operate telescopically, affordingan effective means for causing the movable section to operate vertically and preventing it from lateral or longitudinal displacement.

It is known that desks havinga disappearing section exist, but because of the eX'- pense inconstruction, the diiiiculty of operation and general unsightliness they are not in common use; therefor I do not broadly claim the same but itis believed that the simplicity of parts herein indicated, and ease of operation obtai-ned by them, is new and constitute improvements; having thus described the invention and' pointed out the manner in which it is constructed,- applied and used, what I claim as new' and desire to secure by Letters Patent, is:-

1. An article of furniture' havingV aseetional wall of which one memberis movable in a direction'- perpendicular to and into and out of the plane of the other member Vand which carries a compartmental'case', eX-

tension guides disposed parallel with the pathv ofv movement ofsaid movable wall member vand connecting the same with the body of the article of furniture, said guides Aout of the planeV of the other member and which carries a compartmental case, extension guides disposed' parallel withthepath of movement of said movable wall member andv connecting the same with the body of Y the article of "furniture, said guides consisting of telescoping transversely arched membersA provided with means for limiting their relative movements, and means for operating the movable member including a bell crank lever having a linkconnection with' said member and disposed to operate in a plane between thoseof said'extensiony guides.

3. An article of furniturev having a sectionalwall of which one .member ist movable in a direction perpendicular toi and into and s out of the planeV of saidwall, said movable member' carrying on its inner face a compartmental case,eXtension' guides for deter-` mining thepath of said `movable member,

Vmeans for operating said movable wall mem- -ber and c'onsistingofE af bell crank lever having a link connection Vwith the movable member, the power arm thereof .being long relatively to theoperating arm,l and a hand lever of bell crank typeiconnected with'the operating. armof' the rst named lever, and

means lfor. lockingisaidhand lever in" its adjusted positions5saidimeans including a segment having seats andthe movable Vgrip having a latch for engagement; with saidy seats. In testimony whereof I have signed my name` tothis'specication in the presence of two subscribing witnesses. Y

Y v ABBE YSPRUNG. Y VVitnesses-zLV Y Y HANS C. Boos, Y RICHARD Vi/'EcnrmnifV Y Copies of th'slpa'tent'may be obtaine'df for ve eents each; by'addressingthe-"Gmmissionr .ioflatenta `9lTashingto1I;-1)(1.l a f 

